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JOtru.1
Associate
November 22, 2021
Solved

STM32G0x1 external interrupt from PE possible?

My target device is a STM32G0B1VE which has PE but according to RM0444 Reference manual for STM32G0x1 chips the description of EXTI_EXTICRx register says that combination for PE is not present (reserved). Is it really no possible to use PE for an external interrupt? I don't have hardware yet so I cannot test it.

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Imen.DBest answer
ST Technical Moderator
November 24, 2021

Hello @JOtru.1​ and welcome to the Community :)

I confirm that Port E is set to enter the EXTI, and the RM should be fixed.

Thank you for your contribution and spotting this out.

I closed this thread by marking "Select as Best", as this will help other users find that answer faster.

Imen

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks

3 replies

TDK
November 22, 2021

Probably the RM was written when there weren't any chips with a GPIOE and wasn't fully updated. I would be surprised if it didn't work. I don't have a chip to test.

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JOtru.1
JOtru.1Author
Associate
November 23, 2021

I have the same opinion, STM32G0B1 and STM32G0C1 are the latest devices from the line. Also older IDEs doesn't support them so I suppose the RM is probably outdated in this way.

Imen.DBest answer
ST Technical Moderator
November 24, 2021

Hello @JOtru.1​ and welcome to the Community :)

I confirm that Port E is set to enter the EXTI, and the RM should be fixed.

Thank you for your contribution and spotting this out.

I closed this thread by marking "Select as Best", as this will help other users find that answer faster.

Imen

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks